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X-Ray Diffraction Table |
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X-Ray Diffraction Table |
See Help on X-Ray Diffraction.
Powder X-ray Diffraction (XRD) is one of the primary techniques used by mineralogists and solid state chemists to examine the physico-chemical make-up of unknown materials. This data is represented in a collection of single-phase X-ray powder diffraction patterns for the three most intense D values in the form of tables of interplanar spacings (D), relative intensities (I/Io), mineral name and chemical formulae
The XRD technique takes a sample of the material and places a powdered sample in a holder, then the sample is illuminated with x-rays of a fixed wave-length and the intensity of the reflected radiation is recorded using a goniometer. This data is then analyzed for the reflection angle to calculate the inter-atomic spacing (D value in Angstrom units - 10-8 cm). The intensity(I) is measured to discriminate (using I ratios) the various D spacings and the results are compared to this table to identify possible matches. Note: 2 theta (Θ) angle calculated from the Bragg Equation, 2 Θ = 2(arcsin(n λ/(2d)) where n=1
For more information about this technique, see X-Ray Analysis of a Solid or take an internet course at Birkbeck College On-line Courses. Many thanks to Frederic Biret for these data.
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| D1 Å (2θ) |
I1 %) |
D2 Å (2θ) |
I2 (%) |
D3 Å (2θ) |
I3 (%) |
Mineral | Formula |
| 4.872(18.19) | 200 | 4.042(21.97) | 140 | 2.858(31.27) | 120 | Spinel | MgAl2O4 |
| 4.876(18.18) | 200 | 7.444(11.88) | 180 | 6.950(12.73) | 100 | Holtedahlite | Mg12(PO3OH,CO3)(PO4)5(OH,O)6 |
| 4.876(18.18) | 200 | 5.722(15.47) | 168 | 2.858(31.27) | 86 | Gahnite | ZnAl2O4 |
| 4.880(18.16) | 200 | 8.600(10.28) | 200 | 23.000(3.84) | 200 | Ilmajokite | (Na,Ce,La,Ba)2TiSi3O5(OH)10·n(H2O) (?) |
| 4.880(18.16) | 200 | 2.868(31.16) | 120 | 5.740(15.42) | 120 | Magnesiohogbomite-6N6S | (Mg,Fe++)1.4Ti0.3Al4O8 |
| 4.889(18.13) | 200 | 4.021(22.09) | 170 | 4.020(22.09) | 122 | Khmaralite | (Mg,Al,Fe)16(Al,Si,Be)12O40 |
| 4.890(18.13) | 200 | 9.640(9.17) | 200 | 19.200(4.60) | 200 | Asbolane | (Co,Ni)1-y(Mn++++O2)2-x(OH)2-2y+2x·n(H2O) |
| 4.894(18.11) | 200 | 2.868(31.16) | 116 | 4.056(21.90) | 116 | Ringwoodite | Mg2SiO4 |
| 4.896(18.10) | 200 | 5.904(14.99) | 200 | 8.740(10.11) | 140 | Purpurite | Mn+++PO4 |
| 4.900(18.09) | 200 | 9.440(9.36) | 180 | 3.652(24.35) | 120 | Pyrochroite | Mn(OH)2 |
| 4.900(18.09) | 200 | 5.360(16.53) | 200 | 3.612(24.63) | 180 | Penroseite | (Ni,Co,Cu)Se2 |
| 4.900(18.09) | 200 | 3.940(22.55) | 120 | 4.500(19.71) | 120 | Ferrihydrite | Fe+++2O3·0.5(H2O) |
| 4.900(18.09) | 200 | 5.940(14.90) | 180 | 9.800(9.02) | 180 | Adamite | Zn2(AsO4)(OH) |
| 4.900(18.09) | 200 | 4.080(21.76) | 140 | 2.880(31.03) | 120 | Wadsleyite | (Mg,Fe++)2SiO4 |
| 4.904(18.07) | 200 | 8.620(10.25) | 180 | 6.920(12.78) | 170 | Heterosite | Fe+++PO4 |
| 4.906(18.07) | 200 | 5.178(17.11) | 100 | 5.486(16.14) | 180 | Fluorvesuvianite | Ca19(Al,Mg)13[SiO4]10[Si2O7]4(F,OH)10 |
| 4.916(18.03) | 200 | 5.858(15.11) | 116 | 6.776(13.05) | 112 | Clinobarylite | BaBe2Si2O7 |
| 4.916(18.03) | 200 | 5.024(17.64) | 140 | 7.766(11.38) | 140 | Forsterite | Mg2SiO4 |
| 4.919(18.02) | 200 | 2.883(30.99) | 84 | 3.138(28.42) | 72 | Hercynite | Fe++Al2O4 |
| 4.920(18.01) | 200 | 5.240(16.91) | 200 | 5.900(15.00) | 200 | Gaudefroyite | Ca4Mn+++3-x(BO3)3(CO3)(O,OH)3 |
| 4.924(18.00) | 200 | 5.414(16.36) | 180 | 6.080(14.56) | 160 | Hetaerolite | ZnMn+++2O4 |
| 4.930(17.98) | 200 | 4.270(20.79) | 74 | 3.020(29.55) | 54 | Cuprite | Cu2O |
| 4.940(17.94) | 200 | 5.320(16.65) | 160 | 6.040(14.65) | 140 | Hydrohetaerolite | Zn2Mn+++4O8·(H2O) |
| 4.940(17.94) | 200 | 3.292(27.06) | 90 | 5.700(15.53) | 80 | Mcconnellite | CuCrO2 |
| 4.944(17.93) | 200 | 4.520(19.62) | 180 | 4.044(21.96) | 120 | Oulankaite | (Pd,Pt)5(Cu,Fe)4SnTe2S2 |
| 4.946(17.92) | 200 | 5.680(15.59) | 160 | 7.040(12.56) | 140 | Satterlyite | (Fe++,Mg)2(PO4)(OH) |
| 4.952(17.90) | 200 | 5.632(15.72) | 142 | 5.204(17.02) | 112 | Zincite | (Zn,Mn)O |
| 4.954(17.89) | 200 | 5.252(16.87) | 200 | 4.858(18.25) | 160 | Menshikovite | Pd3Ni2As3 |
| 4.960(17.87) | 200 | 8.600(10.28) | 180 | 5.860(15.11) | 160 | Simferite | Li(Mg,Fe+++,Mn+++)2(PO4)2 |
| 4.960(17.87) | 200 | 8.040(11.00) | 200 | 5.520(16.04) | 180 | Chkalovite | Na2BeSi2O6 |
| 4.960(17.87) | 200 | 5.380(16.46) | 200 | 16.000(5.52) | 160 | Northupite | Na3Mg(CO3)2Cl |
| 4.978(17.80) | 200 | 5.124(17.29) | 200 | 9.440(9.36) | 200 | Cornubite | Cu5(AsO4)2(OH)4 |
| 4.980(17.80) | 200 | 5.540(15.98) | 180 | 3.088(28.89) | 160 | Hausmannite | Mn++Mn+++2O4 |
| 4.980(17.80) | 200 | 2.932(30.46) | 140 | 3.186(27.98) | 120 | Magnesiochromite | MgCr2O4 |
| 4.980(17.80) | 200 | 6.672(13.26) | 200 | 9.600(9.20) | 160 | Parakhinite | Cu++3PbTe++++++O4(OH)6 |
| 4.982(17.79) | 200 | 6.902(12.82) | 180 | 9.732(9.08) | 160 | Khinite | PbCu++3Te++++++O6(OH)2 |
| 4.984(17.78) | 200 | 5.842(15.15) | 120 | 2.920(30.59) | 90 | Galaxite | (Mn,Mg)(Al,Fe+++)2O4 |
| 4.988(17.77) | 200 | 5.256(16.85) | 118 | 5.780(15.32) | 100 | Eucairite | CuAgSe |
| 5.000(17.72) | 200 | 4.140(21.45) | 160 | 5.860(15.11) | 120 | Coulsonite | Fe++V+++2O4 |
| 5.000(17.72) | 200 | 5.900(15.00) | 180 | 5.100(17.37) | 140 | Furutobeite | (Cu,Ag)6PbS4 |
| 5.002(17.72) | 200 | 5.310(16.68) | 180 | 5.786(15.30) | 160 | Krinovite | NaMg2CrSi3O10 |
| 5.002(17.72) | 200 | 9.040(9.78) | 170 | 28.400(3.11) | 160 | Sudoite | Mg2(Al,Fe+++)3Si3AlO10(OH)8 |
| 5.010(17.69) | 200 | 5.296(16.73) | 160 | 5.624(15.74) | 120 | Hibonite | (Ca,Ce)(Al,Ti,Mg)12O19 |
| 5.016(17.67) | 200 | 3.024(29.51) | 80 | 5.720(15.48) | 70 | Delafossite | Cu+Fe+++O2 |
| 5.020(17.65) | 200 | 6.520(13.57) | 200 | 5.620(15.76) | 120 | Terlinguaite | Hg+Hg++ClO |
| 5.020(17.65) | 200 | 12.000(7.36) | 110 | 5.180(17.10) | 90 | Rinneite | K3NaFe++Cl6 |
| 5.020(17.65) | 200 | 5.400(16.40) | 180 | 10.840(8.15) | 160 | Pinakiolite | Mg2Mn+++O2(BO3) |
| 5.020(17.65) | 200 | 5.900(15.00) | 110 | 2.944(30.34) | 100 | Nichromite | (Ni,Co,Fe++)(Cr,Fe+++,Al)2O4 |
| 5.020(17.65) | 200 | 5.300(16.71) | 180 | 5.140(17.24) | 160 | Pirssonite | Na2Ca(CO3)2·2(H2O) |
| 5.022(17.65) | 188 | 3.756(23.67) | 180 | 5.666(15.63) | 88 | Qusongite | WC |
| 5.024(17.64) | 200 | 2.944(30.34) | 90 | 5.894(15.02) | 70 | Cochromite | (Co,Ni,Fe++)(Cr,Al)2O4 |
| 5.026(17.63) | 200 | 6.842(12.93) | 140 | 11.840(7.46) | 120 | Weinebeneite | CaBe3(PO4)2(OH)2·5(H2O) |
| 5.026(17.63) | 200 | 2.952(30.25) | 80 | 3.210(27.77) | 60 | Trevorite | NiFe+++2O4 |
| 5.028(17.62) | 200 | 5.096(17.39) | 200 | 10.200(8.66) | 100 | Bonaccordite | Ni2Fe+++BO5 |
| 5.034(17.60) | 200 | 2.958(30.19) | 120 | 5.920(14.95) | 100 | Cuprospinel | (Cu,Mg)Fe+++2O4 |
| 5.036(17.60) | 200 | 8.126(10.88) | 160 | 5.966(14.84) | 120 | Terlinguacreekite | Hg++3O2Cl2 |
| 5.038(17.59) | 200 | 5.908(14.98) | 100 | 2.952(30.25) | 70 | Zincochromite | ZnCr2O4 |
| 5.040(17.58) | 200 | 3.164(28.18) | 180 | 9.680(9.13) | 180 | Magnesiocoulsonite | MgV+++2O4 |
| 5.040(17.58) | 200 | 2.920(30.59) | 180 | 3.200(27.86) | 180 | Chromite | Fe++Cr2O4 |
| 5.040(17.58) | 200 | 6.200(14.27) | 200 | 5.660(15.64) | 180 | Homilite | Ca2(Fe++,Mg)B2Si2O10 |
| 5.040(17.58) | 200 | 5.340(16.59) | 200 | 5.960(14.85) | 200 | Hydrohalite | NaCl·2(H2O) |
| 5.040(17.58) | 200 | 6.940(12.74) | 180 | 5.560(15.93) | 160 | Laihunite | Fe++Fe+++2(SiO4)2 |
| 5.040(17.58) | 80 | 6.820(12.97) | 80 | 19.940(4.43) | 80 | Montdorite | (K,Na)(Fe++,Mn++,Mg)2.5[Si4O10](F,OH)2 |
| 5.040(17.58) | 200 | 5.920(14.95) | 200 | 5.740(15.42) | 160 | Natalyite | Na(V+++,Cr+++)Si2O6 |
| 5.040(17.58) | 200 | 11.520(7.67) | 200 | 7.400(11.95) | 160 | Painite | CaZrB[Al9O18] |
| 5.040(17.58) | 200 | 4.640(19.11) | 192 | 5.060(17.51) | 98 | Tenorite | CuO |
| 5.042(17.58) | 200 | 7.800(11.33) | 170 | 5.356(16.54) | 100 | Brochantite | Cu4(SO4)(OH)6 |
| 5.044(17.57) | 200 | 8.780(10.07) | 180 | 6.406(13.81) | 160 | Paragonite | NaAl2(Si3Al)O10(OH)2 |
| 5.044(17.57) | 200 | 2.994(29.82) | 108 | 5.346(16.57) | 88 | Rinmanite | (Zn,Mn)2Sb2Mg2Fe4O14(OH)2 |
| 5.050(17.55) | 200 | 5.920(14.95) | 80 | 2.962(30.15) | 70 | Magnesioferrite | MgFe+++2O4 |
| 5.059(17.52) | 200 | 16.096(5.49) | 180 | 4.196(21.16) | 126 | Hogtuvaite | (Ca,Na)2(Fe++,Fe+++,Ti,Mg,Mn)6(Si,Be,Al)6O20 |
| 5.060(17.51) | 200 | 9.000(9.82) | 178 | 6.320(14.00) | 144 | Potassicleakeite | KNa2Mg2Fe+++2LiSi8O22(OH)2 |
| 5.060(17.51) | 200 | 6.320(14.00) | 200 | 6.600(13.40) | 200 | Odintsovite | K2Na4Ca3Ti2Be4Si12O38 |
| 5.060(17.51) | 200 | 5.352(16.55) | 154 | 5.848(15.14) | 138 | Makarochkinite | Ca2Fe++4Fe+++TiSi4BeAlO20 |
| 5.060(17.51) | 200 | 5.120(17.31) | 160 | 5.800(15.26) | 160 | Serendibite | Ca2(Mg,Al)6(Si,Al,B)6O20 |
| 5.060(17.51) | 200 | 2.966(30.10) | 170 | 3.228(27.61) | 170 | Magnetite | Fe++Fe+++2O4 |
| 5.060(17.51) | 200 | 5.820(15.21) | 200 | 7.460(11.85) | 160 | Thalcusite | TlCu3FeS4 |
| 5.060(17.51) | 200 | 5.820(15.21) | 140 | 14.648(6.03) | 140 | Welshite | Ca4Mg9Sb3O4[Si6Be3AlFe2O36] |
| 5.060(17.51) | 200 | 5.500(16.10) | 160 | 6.920(12.78) | 160 | Xanthiosite | Ni3(AsO4)2 |
| 5.060(17.51) | 200 | 14.580(6.06) | 200 | 7.220(12.25) | 160 | Antigorite | (Mg,Fe++)3Si2O5(OH)4 |
| 5.060(17.51) | 200 | 2.972(30.04) | 120 | 3.234(27.56) | 100 | Qandilite | (Mg,Fe++)2(Ti,Fe+++,Al)O4 |
| 5.060(17.51) | 200 | 5.620(15.76) | 140 | 9.720(9.09) | 120 | Kuznetsovite | Hg3Cl(AsO4) |
| 5.062(17.51) | 200 | 4.844(18.30) | 160 | 4.854(18.26) | 160 | Clinosafflorite | (Co,Fe,Ni)As2 |
| 5.063(17.50) | 200 | 5.783(15.31) | 140 | 8.278(10.68) | 100 | Abhurite | Sn3O(OH)2Cl2 |
| 5.064(17.50) | 200 | 4.002(22.19) | 108 | 5.236(16.92) | 100 | Aluminomagnesiohulsite | Mg2(Al,Mg,Sn)(BO3)O2 |
| 5.064(17.50) | 200 | 5.548(15.96) | 160 | 8.780(10.07) | 160 | Reederite-(Y) | Na15Y2(CO3)9(SO3F)Cl |
| 5.066(17.49) | 200 | 2.924(30.55) | 70 | 5.440(16.28) | 70 | Macaulayite | (Fe+++,Al)24Si4O43(OH)2 |
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